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  1. #include <stdio.h>
  2. #include <string.h>
  3. void count(char str[]) {
  4.     int letter = 0, digit = 0, space = 0, other = 0;
  5.     for (int i = 0; i < strlen(str); i++) {
  6.         if ((str[i] >= 'a' && str[i] <= 'z') || (str[i] >= 'A' && str[i] <= 'Z')) {
  7.             letter++;
  8.         } else if (str[i] >= '0' && str[i] <= '9') {
  9.             digit++;
  10.         } else if (str[i] == ' ') {
  11.             space++;
  12.         } else {
  13.             other++;
  14.         }
  15.     }
  16.     printf("字母个数: %d\n数字个数: %d\n空格个数: %d\n其他字符个数: %d\n", letter, digit, space, other);
  17. }
  18. int main() {
  19.     char str[100];
  20.     fgets(str, sizeof(str), stdin);
  21.     if (str[strlen(str) - 1] == '\n') {
  22.         str[strlen(str) - 1] = '\0';
  23.     }
  24.     count(str);
  25.     return 0;
  26. }
  27.  
Success #stdin #stdout 0s 5308KB
comments (?)
stdin
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Standard input is empty
stdout
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字母个数: 0
数字个数: 0
空格个数: 0
其他字符个数: 0
https://ideone.com/3hJ0JE
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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